How did the different beak types first arise in the galapagos finches?

Which term best describes a community in which people work mostly in factories? a.agricultural. b.hunting and gathering. c.domesticated. industrial.

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?